Leake (7-9) was locked in a scoreless battle with Brewers starting pitcher Kyle Lohse until Cincinnati went up 1-0 in the top of the fifth. Unfortunately, Leake couldn't hold the lead, as Milwaukee took a 2-1 advantage on an RBI triple from Carlos Gomez and an RBI single from Ryan Braun in the bottom of the fifth.
The Brewers added on two more runs after Mark Reynolds connected for a two-run homer off Leake in the sixth inning. It was the 15th home run Leake has allowed in 21 starts this season.
The right-handed hurler is expected to make his next start Tuesday against the Diamondbacks. Leake is 1-0 with a 4.50 ERA in one start against Arizona this season.
Krauss had been demoted two months ago after compiling a poor .173/.272/.309 stat line in limited duty with Houston.
Krauss will take the roster spot of George Springer, who was placed on the disabled list. Krauss hit .173 over 110 at-bats with the club earlier in the season.
Tepesch tossed a third of an inning Tuesday, but manager Ron Washington expects him to be able to start Friday. Tepesch threw 12 pitches during the outing Tuesday.
Yoon, who is in his first year in American professional baseball, had already been on the DL with a right shoulder issue. He made one start, allowing two hits in 3 1/3 shutout innings Saturday night, before going back on the DL.
The Korean import has otherwise struggled on the mound with a 3-7 record, 5.51 ERA and 97 hits allowed in 78 1/3 innings.
Hosmer received three plate appearances during the game before being pulled in the eighth inning. He's been dealing with a hand issue all week. Hosmer took a pitch off the hand Sunday against Jon Lester, and hadn't been in the lineup until Wednesday. It's unclear how long he'll be sidelined with the injury.
Tejada immediately fell to the ground after getting struck in the front of the helmet. He stayed on the ground for a few minutes while being evaluated by trainers before walking off the field under his own power.
Ramirez doubled in a run in the third inning and finished with two of their five hits. In the process, he matched his hit total in 18 at-bats in a previous stint this year with Cleveland.
Santana tripled and scored in the first to tie the game, then singled and scored in the fith to give Minnesota a lead it would not relinquish.
Arcia added a single to his sixth blast of the year. He now owns a stat line of .222/.310/.378.